Spring mattress



March 4, 19.24.'

E. AMlEs SPRING MATTRES S Filed A119.- 16. 1921 @mi i@ 3..

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EDWIN ARMES, 0F LONDON, ENGLAND.

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Application led August 16, 1921. Serial No. 492,756.

To allv whom t may concern: f

Be it known Vthat l EDWIN Ali/fins, a subject of the King of GreatBritain and Ireland, residing at 46 Priory Road, Bedford Park, London,England, have invented an improvement in Spring Mattresses (for whichlhave filed an application in England, August 7th, 1920, application No.28251), of which the following is a specification.

This invention relates to a new Vor improved spring mattress, applicablealso to seats for vehicles and for furniture and like purposes andcomprises certain improvements in that type of mattress in which aplurality of arched steel strips or wires with or without interposedsprings, or strips bent to a spring like formation are each held singlyand parallelly in the members of a rectangular frame and the primaryobject of the present invention is to produce a highly efficientmattress or resilient surface at a minimum expense.

A convenient construction comprises essentially a rectangular frame, aplurality of vertically arranged holes or pockets in the side and endmembers of said frame, a plurality of spring steel wires each of anarched shape and approximating in length to the Width of the frame andhaving the ends of each wire inserted within the holes or poclrets inthe side members of the frame, a plurality of spring steel wires each ofan arch shape and approximating in length to the distance between theend members of the frame and having the ends of each wire insertedwithin the holes or pockets in the end members after each wire is firstthreaded over and under the transverse wires.

This invention also contemplates the use of spring like edges to theframe, formed from arched steel wires and also a canvas or like materialcovering for the spring wires in combination with an overlay or mattressof hair or other suitable material.

A further feature of the invention, in the case of an eXtra widemattress for double beds for instance, is the provision of additionaltransverse wires about the centre to avoid any sagging at such centralpart.

This invention will now be more particularly described making referenceto the accompanying drawing in which:

Fig. l is a broken view in plan of a spring mattress constructedaccording to the present invention; v

Fig. 2 is a view in transverse section thereof; Y

Fig. 3 is a broken view in plan of a double width spring mattress.

Fig. 4 is a view in transverse section thereof; l

Y Fig. 5 is a detail view in section-on an enlarged scale-showing theone end of one of the wires fitted within one of the holes or pockets inthe members of the frame.

Fig. 6 is a similar view of a modification. Fig. 7 is a broken view inplan thereof; Fig. 8 is a view in transverse section-on an enlargedscaleshowing more particularly the formation of the spring edge, and

Fig. 9 is a view inv endv elevation of a complete spring mattress withits'overlay. Throughout the views similar parts are marked with likeletters of reference.

Referring more particularly to Figs. 1 and 2, a rectangular framecomposed of end members a a and side memibers al al is provided on itsupper surface with a plurality of substantially equally spaced holes orpockets t2-which may well be about four inches apart-adapted to receivethe ends b of arch shaped wires.

These wires are preferably of coppered, tinned or plated spring steel(of any appropriate gauge No, 9 or 11 S. W. Gr. is eminently suitableand satisfactory in practice) and are simply cut oif to an appropriatelength from a coil of wire and their ends inserted in the holes orpockets without bending, their curvature being due solely to the formimparted to the wire on reeling or making it into coils for transport.

The transverse wires b1 are preferably first placed in position then thelongitudinal wires b2 are passed alternately under and over thetransverse wires before their ends are positioned in the holes orpockets in the end members a. The longitudinal wires b2 may be indentedor bent at the crossing points with the transverse wires b1 in order tostiffen and brace the latter or the crossing points of the wires may bebound together. The ends b of the wires may be simply inserted withinpockets formed in the members of the frames, but preferably thefollowing method (see Fig. 5) is adopted. A hole a2 somewhat larger thanthe wire employed, is first drilled. to a suitable depth, which is thencounter bored to receive a steel disc or washer c provided with acentral hole approximating to the gauge of wire employed, the end b ofthe Wire is then thrust through this disc or washer, its end resting onthe bottom oi the hole. The frame may be made from wood, which is thecase in the construction above described, but it may equally well bemade from metal (see Figs. 6 and 7) preferably of a channel section inwhich case snugs or inwardly formed depressions d are formed in thevertical web (Z1. These snugs d are provided with or form holes orpocl'rets: to receive the ends l) of the wires which first pass freelythrough slots (Z2 formed in the upper flange. cl3 as shown. if angleiron or metal be employed, a stop is provided for the extremity of thewire.

ln the casey of a mattress for a double bed the. constructionillustrated in Figs. 3, andY 4 is preferably employeda in which oase theframe, is furnished with two additional longitudinal members a3V asarranged as shown. Each of these members are provided with holes orpockets c2, the one series in the members a1 and a? being alternatelyarranged with respect to` the series in the other member al and et sothat the transverse wires b1 extend from one of the side members.- al tothe additional member a3 furthest; from it. By this arrangement thecentral portion of the mattress between the members as a3 containsdouble the nu-nr ber of transverse wires as shownandso efectuallyprevents any sagging in the centre of the mattress.

In order to provide a. spring edge to the mattress, additional archshaped wires b3 may be arranged alternately as shown (see Fig. 8) oneach end and side member of the frame. rlihe ends of these Wires areplaced within holes or pockets in the members of the frame and thehighest points of these wires are slightly higher than the height of thetransverse and longitudinal wires b1 b2.

Flexible rods, such as cane e, (see Fig. 9) are secured to these arch.shaped wires 3 by binding with twine or wire and over the whole isplaced a textile covering f of canvas or other suitable material whichmay be tacked or nailed to the members of the frame, if of wood, or inthe case of metal, to wood filets secured within the channel or langlesection, or the covering f may be removably attached by eyelets andbuttons g secured to the underside of the frame. Over this covering isplaced or attached thereto an overlay f1 filled with horse hair or othersuitable filling. The. covering or the overlay may be secured by twineto the wires and the overlay but-toned as usual.

ln some cases provision may be made. for nialrii'ig the longitudinalmembers of the frame in two parts hinged together for convenience intransport.

l declare that what l claim is A spring mattress comprising arecta-ngular metallic frame formed of channel section members, inwardlyprojecting snugs formedon the vertical Webs of said members, verticalpockets, formed in said snugs, slots formed in the u-pperfflanges ofsaid members in line with the poc iets in said snugs, and a plurality oflongitudinal and transverse resilient members formed by cutting offappropriate lengths' of steel wire from a coil and having their endsinserted through the slots and within the pockets in the snugs, as setforth.

EDWIN AMIES.,

